The measurement and interpretation of superallowed 0+ to 0+ nuclear beta decay

Abstract

Measurements of the decay strength of superallowed 0+ to 0+ nuclear beta transitions shed light on the fundamental properties of weak interactions. Because of their impact, such measurements were first reported 60 years ago in the early 1950s and have continued unabated ever since, always taking advantage of improvements in experimental techniques to achieve ever higher precision. The results helped first to shape the Electroweak Standard Model but more recently have evolved into sensitively testing that model's predictions. Today they provide the most demanding test of vector-current conservation and of the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. Here, we review the experimental and theoretical methods that have been, and are being, used to characterize superallowed 0+ to 0+ beta transitions and to extract fundamentally important parameters from their analysis.

32 pages, 9 figures

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Cited by in corpus (8)

• New physics searches in nuclear and neutron $\beta$ decay
• Beyond-Standard-Model Tensor Interaction and Hadron Phenomenology
• Prospects for rare and forbidden hyperon decays at BESIII
• Symmetry violations in nuclear and neutron $\beta$ decay
• Hyperon Semileptonic decay constants with flavor SU(3) symmetry breaking
• No-core configuration-interaction model for the isospin- and angular-momentum-projected states
• Beta-decay study within multi-reference density functional theory and beyond
• Isospin effects in N~Z nuclei in extended Density Functional Theory